Title

Comparative study on the creation of ferromagnetic properties in Fe/Co-doped lanthanum-oxide ceramics: role of the hydrogenation

Author First name, Last name, Institution

H. Arrak Hamad, Zayed University
A. A. Dakhel, University of Bahrain

Document Type

Article

Source of Publication

Journal of the Australian Ceramic Society

Publication Date

1-1-2023

Abstract

Lanthanum oxide (Lanthana-La2O3) doped with Fe and Co nanoparticles was synthesized by a co-precipitation method. These synthesized samples were systematically characterized and studied using several measuring techniques: X‐ray fluorescence (XRF), X-ray diffraction (XRD), and UV-visible optical spectroscopy. Moreover, magnetization measurements were performed to study the elemental content analysis, crystalline structure, and optical bandgap and created ferromagnetic magnetic properties respectively. These measurements were aimed to investigate the structural and optical properties and the possibility of the creation of room-temperature ferromagnetic (RT-FM) properties in a host lanthana ceramic doped by Fe and Co ions, which could transform the La2O3 ceramic into a dilute magnetic semiconductor (DMS). The bandgap of the synthesized lanthana nanoparticles (NPs) was found to be significantly redshifted (~50–60%) by Fe/Co doping. The main objective of the present study is to investigate the significant effect of hydrogenation on the ferromagnetic properties of Fe- and Co-doped lanthanum-oxide ceramics. The results in this work indicate that the hydrogenation of the host NPs played an essential role in creating the RT-FM properties. The experimental results also showed that the magnetization obtained in La2O3 doped with Co ions was enhanced approximately by about three times higher than when Fe ions were doped. The obtained results were reported and discussed.

ISSN

2510-1560

Publisher

Springer Science and Business Media LLC

Disciplines

Materials Science and Engineering

Keywords

Co-doped La O 2 3, Fe-doped La O dilute magnetic semiconductor 2 3, Ferromagnetism

Scopus ID

85163313313

Indexed in Scopus

yes

Open Access

no

COinS